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LS engine info

This is a discussion on LS engine info within the Internal Engine forums, part of the LSx Technical Help Section category; The LS series is expansive ranging from 4.8 to 7.0 in steel and aluminum. The crank on all LS engines ...

  1. #1
    Senior Member slims00ls1z28's Avatar
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    2005 GTO M6 Black
    2000 Z28 A4 Red

    The LS series is expansive ranging from 4.8 to 7.0 in steel and aluminum. The crank on all LS engines save for the 4.8 and 7.0 are the same 92mm (3.62). And if I am not mistaken all LS series also have aluminum heads.

    Heres some LS info for ya.

    LR4- 2003 - 4.8L 96.01 x 83 mm- Iron Block- 270-350 hp- 285-290 tq
    installed in 03 Express 2500-3500 vans/ Savanna 2500-3500 vans/Silverados/Sierras/Tahoes/Yukons
    LM7- 2003 - 5.3L 96.01 x 92 mm- Iron Block-285-295 hp- 325-335 tq
    03 Escalades/Avalanches/Express/Savana/Silverado 1500-2500
    Sierra 1500-2500/ Suburban/Yukon/Tahoe/Yukon XL
    LM4- 2003 - 5.3L 96.01 x 92 mm- Aluminum Block-295-355
    Trailblazer EXT/ Envoy XL/SSR
    L59- 2003 - 5.3L 96.01 x 92 mm- Aluminum Block- Flex Fuel HP-?
    Suburban/Yukon XL/Tahoe/Yukon/07-Avalanche/07-Sierra
    Classic
    LH6- 2005 - 5.3L 96.01 x 92 mm- Aluminum Block- Displacement on Demand
    Trailblazer Ext/Envoy XL/Buick Ranier (No DOD)
    LQ4- 1999 - 6.0 101.6 x 92 mm- Iron Block- 300-325 HP - 360-370 TQ
    Express/Savanna/Silverado HD's/Sierra HD's/ 02-05 Denali
    LQ9- 2002- 6.0 101.6 x 92 mm- Iron Block- 345 hp-380 tq- Flat top pistons
    02-05 Cadillac trucks and Suv's/ 03-05 Silverado SS/ 04-05
    Silverado and Sierra HO/ 06-07 Silverado and Sierra VortexMax
    L76- 2006- 6.0 101.6 x 92 mm- displacement on demand- 355hp/365tq,
    variable timing
    06 Suburban/Avalanche will be available in the 08 G8
    L92- 2007- 6.0 101.6 x 92 mm- Aluminum Block-Variable timing 403HP/417TQ
    07 up Escalade/07 up Denali/07 up Sierra/ 07 up H2
    L98 (not TPI version L98 Austrailian only L76 derivitive) 6.0 -Iron Block 362
    HP/ 391 TQ
    Holden Cars Commodore/Statesman/Caprice
    LS1- 1997 -5.7 99 x 92 mm- Aluminum Block-305-350 hp 335-365 tq
    97-04 vettes/ 97 up Fbodies/04 GTO/ Holden Cars- Statesman
    Caprice/Monaro/ and all special vehicles
    LS2- 2004 - 6.0 101.6mm x 92mm- Aluminum block- 400-412 hp 400-406 TQ
    04-07 Holden special vehicles/05-06 Monaro/05-07 vettes/ 05-
    06 GTO/05-06 SSR/06-07 Trailblazer SS/06-07 CTS-v.
    LS3- 2007- 6.2L 4.06in x 3.62 in- Aluminum block- 430-436 HP 424-428 TQ
    08 Vette
    LS4- 2006- 5.3 96.01 x 92 mm- Aluminum block- DOD- LS6 heads- 303HP 323
    TQ
    06-07 Impala SS/06-07 Monte Carlo SS/05-08 Grand Prix GXP

    LS6 and 7 should be known already as Z06 only motors and LS9 is just rumored at this point. But anyway thats all the info I could dig up on LS engines and cars installed.
    Last edited by mrr23; 04-28-2007 at 09:37 AM.

  2. #2
    Exalted Cyclops 67CamaroRSSS's Avatar
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    2002 Z28 A4 NBM
    Sadly now demodded :(

    Very good and concise. 1 item though: Shouldn't the LS1 be 98-up F-body instead of 97-up?

    If this is correct (I believe so) and it gets fixed then a mod can delete my post.

  3. #3
    Senior Member OnEbAdReDSS's Avatar
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    Red
    2000 Camaro SS # 5,876

    Quote Originally Posted by slims00ls1z28 View Post
    The LS series is expansive ranging from 4.8 to 7.0 in steel and aluminum. The crank on all LS engines save for the 4.8 and 7.0 are the same 92mm (3.62). And if I am not mistaken all LS series also have aluminum heads.

    Heres some LS info for ya.

    LR4- 2003 - 4.8L 96.01 x 83 mm- Iron Block- 270-350 hp- 285-290 tq
    installed in 03 Express 2500-3500 vans/ Savanna 2500-3500 vans/Silverados/Sierras/Tahoes/Yukons
    LM7- 2003 - 5.3L 96.01 x 92 mm- Iron Block-285-295 hp- 325-335 tq
    03 Escalades/Avalanches/Express/Savana/Silverado 1500-2500
    Sierra 1500-2500/ Suburban/Yukon/Tahoe/Yukon XL
    LM4- 2003 - 5.3L 96.01 x 92 mm- Aluminum Block-295-355
    Trailblazer EXT/ Envoy XL/SSR
    L59- 2003 - 5.3L 96.01 x 92 mm- Aluminum Block- Flex Fuel HP-?
    Suburban/Yukon XL/Tahoe/Yukon/07-Avalanche/07-Sierra
    Classic
    LH6- 2005 - 5.3L 96.01 x 92 mm- Aluminum Block- Displacement on Demand
    Trailblazer Ext/Envoy XL/Buick Ranier (No DOD)
    LQ4- 1999 - 6.0 101.6 x 92 mm- Iron Block- 300-325 HP - 360-370 TQ
    Express/Savanna/Silverado HD's/Sierra HD's/ 02-05 Denali
    LQ9- 2002- 6.0 101.6 x 92 mm- Iron Block- 345 hp-380 tq- Flat top pistons
    02-05 Cadillac trucks and Suv's/ 03-05 Silverado SS/ 04-05
    Silverado and Sierra HO/ 06-07 Silverado and Sierra VortexMax
    L76- 2006- 6.0 101.6 x 92 mm- displacement on demand- 355hp/365tq,
    variable timing
    06 Suburban/Avalanche will be available in the 08 G8
    L92- 2007- 6.0 101.6 x 92 mm- Aluminum Block-Variable timing 403HP/417TQ
    07 up Escalade/07 up Denali/07 up Sierra/ 07 up H2
    L98 (not TPI version L98 Austrailian only L76 derivitive) 6.0 -Iron Block 362
    HP/ 391 TQ
    Holden Cars Commodore/Statesman/Caprice
    LS1- 1997 -5.7 99 x 92 mm- Aluminum Block-305-350 hp 335-365 tq
    97-04 vettes/ 97 up Fbodies/04 GTO/ Holden Cars- Statesman
    Caprice/Monaro/ and all special vehicles
    LS2- 2004 - 6.0 101.6mm x 92mm- Aluminum block- 400-412 hp 400-406 TQ
    04-07 Holden special vehicles/05-06 Monaro/05-07 vettes/ 05-
    06 GTO/05-06 SSR/06-07 Trailblazer SS/06-07 CTS-v.
    LS3- 2007- 6.2L 4.06in x 3.62 in- Aluminum block- 430-436 HP 424-428 TQ
    08 Vette
    LS4- 2006- 5.3 96.01 x 92 mm- Aluminum block- DOD- LS6 heads- 303HP 323
    TQ
    06-07 Impala SS/06-07 Monte Carlo SS/05-08 Grand Prix GXP

    LS6 and 7 should be known already as Z06 only motors and LS9 is just rumored at this point. But anyway thats all the info I could dig up on LS engines and cars installed.

    LS9 ain't a rumor anymore!!!!

  4. #4
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    light grey
    1978 Volvo 242GT

    Thanks for the comprehensive listing. Can I copy it for my own personal use in the future? Also, where exactly does the L33 fit in with all of this? My limited understanding is that its about 327 inches, 310 hp, 330 tor., all aluminumumm 4th gen and was/is offered in '04 and later extended and crew cab light Chevy/GMC pickups with 4WD? Thanks again.

  5. #5
    Senior Member slims00ls1z28's Avatar
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    2005 GTO M6 Black
    2000 Z28 A4 Red

    L33- 2005 - 5.3L 96.01 x 92 mm- Aluminum Block -285-315 hp/ 325-335 tq (aluminum block basically of the LM7)

    2005-2007 1500 Extended cab Chevy and GMC 4wd trucks.

    New arrivals as well

    LSA/LS8/LS9 -2008 - 6.2L 4.06 x 3.62mm- Aluminum block with a 6th gen Eaton TVS R2300 roots 4-lobe supercharger, with an intercooler integrated into the intake- 475 (LS8 rumored)- 620+ HP. Forged bottom, titanuim rods, built alongside the LS7 by hand at Wixom.

    LS9 2009+ ZR1 620+ hp,
    LSA 2009+ CTS-V 550
    LS8 2009+ Zeta chasis vehicle (no official announcements yet confirming or denying or what to put it in)

    You can use this anyway ya need btw.

  6. #6
    Junior Member blacksunshine427's Avatar
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    Red
    2002 Camaro Z-28 M6

    how much hp will an ls1 block hold before cracking any webbing or anything else?
    Last edited by blacksunshine427; 03-06-2008 at 08:10 PM.
    Red '02 Camaro Z-28
    Black '06 H.D. Streetglide
    Vibrant Blue '07 Dodge Hemi Crew Cab

  7. #7
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    red
    2001 trans am

    really needed this info. thanks

  8. #8
    🤔 11s. blackbirdbrain89's Avatar
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    black trans am
    2000

    i have seen ls1 blocks hold 1000 hp +

  9. #9
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    few questions

    Aluminum Block VS Iron Block?

    LM7 vs LM4 ..... if one was searching for a 700RWHP capable block for a turbo engine to run around on the street..... is there any significant difference in the strength between these two blocks?

    Also.... if one wanted to build a 5.3...... could you install the L92 heads (originally for the 6.0 which has a larger bore)..... and if so... will the stock style truck 5.3 intake work?

    I assume I could install a Z06 ... or LS1 vette camshaft into a (say 2000 model) 5.3 truck engine?

    Sorry for the ignorance.

  10. #10
    Senior Member slims00ls1z28's Avatar
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    2005 GTO M6 Black
    2000 Z28 A4 Red

    I don't really know the RWHP ratings in the Aluminum vs iron blocks. However there is an increase in strength between the two favoring the iron blocks, couldn't tell you exactly much though sorry.

    As for the L92 heads on a LM7 or LM4 no. The valve placement is designed for a 4" bore (101.6 mm). Anything smaller than a 6.0 block (4"bore) will not work. Intake wise the L92/LS3/LS7 style heads (gen IV) are square port wheras the 5.3/5.7/6.0 LM/LS1/6 (gen III) style use cathedral ports.

    The camshaft will work but you'd probably be better off ordering a custom grind as the specs on those cams are rather mild especially on a smaller displacement engine.

  11. #11
    Member iam_dale's Avatar
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    White
    02 WS6

    I had an 02 1500HD that was a 6.0. LQ9 I think. It was rated at 300Hp and 330 or 360 lbs tq.

    dale

  12. #12
    Senior Member slims00ls1z28's Avatar
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    2005 GTO M6 Black
    2000 Z28 A4 Red

    With the 300 rating it sounds like the LQ4 (300 hp 3760 TQ)which is only a lower compression version of the LQ9. LQ9's had 345 hp rating and according to GM were only available in the cadillac trucks in 02.

  13. #13
    Member iam_dale's Avatar
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    Quote Originally Posted by slims00ls1z28 View Post
    With the 300 rating it sounds like the LQ4 (300 hp 3760 TQ)which is only a lower compression version of the LQ9. LQ9's had 345 hp rating and according to GM were only available in the cadillac trucks in 02.
    Gotcha....didn't see the HD Silverado's before...must've overlooked it.

    dale

  14. #14
    Member War Theory's Avatar
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    Black
    2001 Ws6

    Ls1 or Ls6???

    Hello everyone

    Ok this might sound weird but is there any truth to the rumor that there were 30,000 Ws6 from 1998 to 2002 given an Ls6 instead of an Ls1 because of overage.


    I know this sounds funny but 3 weeks age something strange happened to me. I was driving around my area and pulled up to a 2006ishbody style yellow Cobra mustang at a red light. I told the drive nice ride and if it was a real cobra he smiled and said yes than hit the gas it sounded deep but I have hard deeper before. The streets were pretty clear so we waited for the green light to see what’s what. I hooked pretty quick and killed him at the light I saw him catching up so I floored it and it was not even close I was killing him by 2 to 3 cars easy. We hit another light and I told him to stop playing and really lay into it he looked pretty upset and asked what I had I told him nothing but stock. He called me a liar and told me to F%^K off, he felt I have had to have something. I know I do not have stock exhaust, but even So can anyone help?


    This might sound we

  15. #15
    The Bandit Wesman's Avatar
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    Quote Originally Posted by War Theory View Post
    Hello everyone

    Ok this might sound weird but is there any truth to the rumor that there were 30,000 Ws6 from 1998 to 2002 given an Ls6 instead of an Ls1 because of overage.
    The complete LS6 (Z06 engine) was never installed in an F-body from the factory. However, there was a shortage of LS1 blocks in the 2001-2002 model years, so the LS6 block was substituted in its place. It offers no real advantages over the LS1, it won't make any more power or anything, its just that its the LS6 casting.

    I know this sounds funny but 3 weeks age something strange happened to me. I was driving around my area and pulled up to a 2006ishbody style yellow Cobra mustang at a red light. I told the drive nice ride and if it was a real cobra he smiled and said yes than hit the gas it sounded deep but I have hard deeper before. The streets were pretty clear so we waited for the green light to see what’s what. I hooked pretty quick and killed him at the light I saw him catching up so I floored it and it was not even close I was killing him by 2 to 3 cars easy. We hit another light and I told him to stop playing and really lay into it he looked pretty upset and asked what I had I told him nothing but stock. He called me a liar and told me to F%^K off, he felt I have had to have something. I know I do not have stock exhaust, but even So can anyone help?
    There are no Mustang Cobras in the 2005+ Mustang body style. There is the GT500 (has Cobra badges), but that would have whooped you very, very badly, so I seriously doubt you raced one of those.

  16. #16
    Member War Theory's Avatar
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    Thanks for clearing that up I am pretty new to the F-body scene. Still felt good pounding on a mustang.... So how would you be able to tell if you have a Ls6 instead of a Ls1? One more thing I read somewhere (can't remember the site ) that a 2001 and 2002 was rated at 385Hp and can ran a 12.9 in the 1/4 mile is that true?

  17. #17
    Member txz28's Avatar
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    Quote Originally Posted by War Theory View Post
    Hello everyone

    Ok this might sound weird but is there any truth to the rumor that there were 30,000 Ws6 from 1998 to 2002 given an Ls6 instead of an Ls1 because of overage.


    I know this sounds funny but 3 weeks age something strange happened to me. I was driving around my area and pulled up to a 2006ishbody style yellow Cobra mustang at a red light. I told the drive nice ride and if it was a real cobra he smiled and said yes than hit the gas it sounded deep but I have hard deeper before. The streets were pretty clear so we waited for the green light to see what’s what. I hooked pretty quick and killed him at the light I saw him catching up so I floored it and it was not even close I was killing him by 2 to 3 cars easy. We hit another light and I told him to stop playing and really lay into it he looked pretty upset and asked what I had I told him nothing but stock. He called me a liar and told me to F%^K off, he felt I have had to have something. I know I do not have stock exhaust, but even So can anyone help?


    This might sound we
    nice kill i love that look and the bein told to f--- off lol I had a guy in what I thought was a stock /with a flow master GT race me 5 times one night each time coming up with another reason why i walked 4 cars no him. come to find out the next night from my then gf that mustang wasnt a stock GT but one of those bullet mustangs the ones ford made and told everyone they would not only challenge the LS1 but walk right by it yall remmeber those? lol anyway i had to call him on it and sure as shit it was and i got told i was just another LS1 Asshole lol anyhow so from then on the crew i ran with ALL ls1 f-bodys started callin ourselves the ls1 assholes lol then even made a thread on their lil mustnag website like ours called ...run ins with the ls1 assholes ...basicly tryin to figure out what mods we had on what cars lol

  18. #18
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    Black T-Tops
    2002 Camaro SS M6

    LS1 = amazing

  19. #19
    Junior Member lawmanbsi's Avatar
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    hugger orange
    1999 Camaro SS

    In most cases GM, Ford and, Chrysler under rate the horse power, Has the ls1 been dyno tested to show any diff in factory rating?

  20. #20
    Member Gundlach9's Avatar
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    Navy Blue Metallic
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    "LS1 Assholes" - Nice!

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